Avoid that SCSI scanning triggers creation of targets with a non-zero
channel number.
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
Cc: Brian King <brking@xxxxxxxxxxxxxxxxxx>
Cc: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
---
drivers/scsi/ibmvscsi/ibmvscsi.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
Note: this patch hasn't been tested yet.
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 3d391dc..c31adf5 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -498,6 +498,11 @@ static void purge_requests(struct ibmvscsi_host_data *hostdata, int error_code)
spin_unlock_irqrestore(hostdata->host->host_lock, flags);
}
+static int ibmvscsi_target_alloc(struct scsi_target *starget)
+{
+ return starget->channel == 0 ? 0 : -ENODEV;
+}
+
/**
* ibmvscsi_reset_host - Reset the connection to the server
* @hostdata: struct ibmvscsi_host_data to reset
@@ -1803,6 +1808,7 @@ static struct scsi_host_template driver_template = {
.module = THIS_MODULE,
.name = "IBM POWER Virtual SCSI Adapter " IBMVSCSI_VERSION,
.proc_name = "ibmvscsi",
+ .target_alloc = ibmvscsi_target_alloc,
.queuecommand = ibmvscsi_queuecommand,
.eh_abort_handler = ibmvscsi_eh_abort_handler,
.eh_device_reset_handler = ibmvscsi_eh_device_reset_handler,
--
1.7.3.4
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